| US 7,603,138 B2 | ||
| Environmental monitoring using mobile devices and network information server | ||
| Tao Zhang, Fort Lee, N.J. (US); Sunil Madhani, Austin, Tex. (US); and Raziq Yaqub, Stewartsville, N.J. (US) | ||
| Assigned to Toshiba American Research, Inc., Piscataway, N.J. (US); and Telcordia Technologies, Inc., Piscataway, N.J. (US) | ||
| Filed on May 22, 2006, as Appl. No. 11/419,575. | ||
| Claims priority of provisional application 60/710354, filed on Aug. 22, 2005. | ||
| Prior Publication US 2007/0109119 A1, May 17, 2007 | ||
| Int. Cl. H04M 1/00 (2006.01) | ||
| U.S. Cl. 455—556.1 [455/550.1; 455/557; 455/404.1; 455/426.1; 340/531] | 8 Claims |
| 1. A system for monitoring various environmental conditions and situations, comprising:
a plurality of mobile sensor devices, each including at least one environmental sensor for detecting conditions such as potential
biological or chemical attack, road and traffic conditions, air quality, weather conditions, and the like, said plurality
of mobile sensor devices being mounted to respective sensor carriers deployed in a region of interest and roaming throughout
said region of interest; and
a knowledge server in communication with said plurality of mobile sensor devices over a distributed wireless communication
network, said knowledge server receiving sensor data developed by said plurality of mobile sensor devices over said distributed
wireless communication network,
wherein the number of wireless LANs required in said region of interest is W≅T*Fr/K, wherein W is the number of required wireless LANs, K is the number of mobile sensor devices deployed in said region of
interest, Fr is the frequency of sensor information reports transmitted by said mobile sensor devices, and T is the average time required
for a mobile sensor device to traverse said region of interest.
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